PURPOSE: The primary prevention for cervical cancer, the human papilloma virus (HPV) vaccination, has been available in South Korea and its importance has been emphasized publicly. The purpose of this study was to investigate the knowledge regarding HPV vaccination and identify the factors associated with HPV vaccination in female university students. METHODS: A sample of 200 women among university students in Seoul was asked to answer a questionnaire on HPV-related knowledge and attitude, and influencing factors on HPV vaccination. RESULTS: Among the respondents, 12.0% were HPV vaccinated. Overall HPV-related knowledge was low, and knowledge was not different between the vaccinated and unvaccinated groups. The vaccinated group demonstrated a higher score on the knowledge about the place where people could receive HPV vaccination and the cost of the vaccination than that of the unvaccinated group. The major influencing factor on vaccination was the parent's recommendation and the major barrier for vaccination was the cost of the vaccination. CONCLUSION: A broadened public campaign is recommended to increase the knowledge and positive attitude towards HPV vaccination for university female students as well as their parents.
Surveys and Questionnaires ; Female ; Humans ; Hypogonadism ; Mitochondrial Diseases ; Ophthalmoplegia ; Papilloma ; Papillomavirus Vaccines ; Parents ; Primary Prevention ; Republic of Korea ; Uterine Cervical Neoplasms ; Vaccination ; Viruses

BACKGROUND: Glioblastomas may develop de novo (primary glioblastomas, P-GBLs) or through progression from lower-grade astrocytomas (secondary glioblastomas, S-GBLs). The aim of this study was to compare the immunohistochemical classification of glioblastomas with clinically determined P-GBLs and S-GBLs to identify the best combination of antibodies for immunohistochemical classification. METHODS: We evaluated the immunohistochemical expression of epidermal growth factor receptor (EGFR), p53, and isocitrate dehydrogenase 1 (IDH-1) in 150 glioblastoma cases. RESULTS: According to clinical history, the glioblastomas analyzed in this study consisted of 146 P-GBLs and 4 S-GBLs. Immunohistochemical expression of EGFR, p53, and IDH-1 was observed in 62.6%, 49.3%, and 11.1%, respectively. Immunohistochemical profiles of EGFR(+)/p53(-), IDH-1(-)/EGFR(+)/p53(-), and EGFR(-)/p53(+) were noted in 41.3%, 40.2%, and 28.7%, respectively. Expression of IDH-1 and EGFR(-)/p53(+) was positively correlated with young age. The typical immunohistochemical features of S-GBLs comprised IDH-1(+)/EGFR(-)/p53(+), and were noted in 3.6% of clinically P-GBLs. The combination of IDH-1(-) or EGFR(+) was the best set of immunohistochemical stains for identifying P-GBLs, whereas the combination of IDH-1(+) and EGFR(-) was best for identifying S-GBLs. CONCLUSIONS: We recommend a combination of IDH-1 and EGFR for immunohistochemical classification of glioblastomas. We expect our results to be useful for determining treatment strategies for glioblastoma patients.
Antibodies ; Astrocytoma ; Classification* ; Coloring Agents ; Genes, erbB-1 ; Genes, p53 ; Glioblastoma* ; Humans ; Immunohistochemistry ; Isocitrate Dehydrogenase ; Receptor, Epidermal Growth Factor

PURPOSE: Molecular treatments targeting epidermal growth factor receptors (EGFRs) are important strategies for advanced colorectal cancer (CRC). However, clinicopathologic implications of EGFRs and EGFR ligand signaling have not been fully evaluated. We evaluated the expression of EGFR ligands and correlation with their receptors, clinicopathologic factors, and patients’ survival with CRC. MATERIALS AND METHODS: The expression of EGFR ligands, including heparin binding epidermal growth factor-like growth factor (HBEGF), transforming growth factor (TGF), betacellulin, and epidermal growth factor (EGF), were evaluated in 331 consecutive CRC samples using mRNA in situ hybridization (ISH). We also evaluated the expression status of EGFR, human epidermal growth factor receptor 2 (HER2), HER3, and HER4 using immunohistochemistry and/or silver ISH. RESULTS: Unlike low incidences of TGF (38.1%), betacellulin (7.9%), and EGF (2.1%), HBEGF expression was noted in 62.2% of CRC samples. However, the expression of each EGFR ligand did not reveal significant correlations with survival. The combined analyses of EGFR ligands and EGFR expression indicated that the ligands–/EGFR+ group showed a significant association with the worst disease-free survival (DFS; p=0.018) and overall survival (OS; p=0.005). It was also an independent, unfavorable prognostic factor for DFS (p=0.026) and OS (p=0.007). Additionally, HER4 nuclear expression, regardless of ligand expression, was an independent, favorable prognostic factor for DFS (p=0.034) and OS (p=0.049), by multivariate analysis. CONCLUSION: Ligand-independent EGFR overexpression was suggested to have a significant prognostic impact; thus, the expression status of EGFR ligands, in addition to EGFR, might be necessary for predicting patients' outcome in CRC.
Betacellulin ; Colorectal Neoplasms* ; Disease-Free Survival ; Epidermal Growth Factor* ; Heparin ; Humans ; Immunohistochemistry ; In Situ Hybridization ; Incidence ; Ligands ; Multivariate Analysis ; Prognosis* ; Receptor, Epidermal Growth Factor* ; RNA, Messenger ; Silver ; Transforming Growth Factors